March, 192 1. 1 BlaTCHLEV: XoTES ON INDIANA HaI.TICINI. 19 



/. Joints 2. 3 and 4 of antcnnx unequal, successively longer; 

 color dark brown with a faint bronze lustt-r ; length 2.3-2.$ 



mm turbatus Horn. 



//. Joints 2. 3 and 4 of antenn.-e subequal in length : color piceous ; 

 length less than 2 mm. 

 III. Punctures of thorax very fine, almost invisible: legs 



piceous; length 1.8 mm €1X0 Horn. 



mm. Punctures of thorax moderately coarse, very distinct; legs 



dull yellow : length 1.5 mm pygmaeos Horn. 



kk. Upper surface distinctly alutaceous, moderately shining; color 

 brownish-piceous ; elytral punctures coarse : Kngth 2-2.2 mm. 



melanurus Melsh 

 aa. Elytra at base not wider than thorax : humeri and umbones absent or very 

 feeble; body apterous. (Sul^,enus Apterius.) 

 n. Color either testaceous or reddish-brown. 



o. Abdomen coarsely punctate; length 2-2.2 mm insolens Horn 



00. Abdomen smooth or very indistinctly punctate ; length not o\ er 

 1.8 mm. 

 p. Thorax with distinct coarse, deep scattered punctures ; pygidium 

 wholly concealed: elytra with coarse, deep punctur<s: length 



1 .3 mm perf oratns Horn. 



pp. Thorax with fine, shallow, almost invisible punctures; pygidium 



plainly visible ; elytra with much finer, more shallow punctures. 



q. Pale reddish-brown, feebly shining : form elongate, subcylin- 



drical : length 1.8 mm subcylindricus Blatch. 



qq. Dark reddish-brown, strongly shining : form .-ihorr-oval : length 



I— 1.2 mm misellus new spicic>. 



nu. Color either black or very dark chocolate-brown. 



r. Color black; punctures of elytra coarse, dense; length 1-1.2 mm. 



solidaginis Horn. 



rr. Color dark chocolate-brown : punctures of elytra fine and sparse ; 



length 1.5 mm saltatus n. w species. 



Longitarsus arenacevts new species. 



Broadly o\ ai. convex, robust for the genus : winged. Reddish-casianeous 

 or brick-red, shining; apical half of antennx and hind femora and sutural line 

 of elytra slightly darker. Head with frontal carina scarcely evident, postocular 

 tubercles prominent. Antennae stout, joints 2. 3 and 4 distinctly increasing in 

 length, the fourth double the length of the second. Thorax sub<|uadrate, one- 

 fourth wider than long, sides feebly rounded, front angles with a promincn' 

 obliquely truncated oval nodule, hind ones rounded into base; disk minutely 

 alutaceous, very sparsely and finely but distinctly punctate. Elytra oval, one- 

 third wider at base than thorax ; humeri rounded, umbones feeble but evident ; 

 disk minutely alutaceous, very finely, evenly and rather densely punctate. 

 Abdominal segments 1-4 gradually diminishing in length, all distinctly punc- 

 tate. Length, 2.2-2.5 n^n\. 



